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Full text of "The Flow Of Gases In Furnaces"

262

APPENDIX VII
TABLE 16


	Gas on Gas
	Air on
 Air
	Gas on Waste
 Gas
	Air on Waste Gas

Calories available for gas checker 2035X0.3619=     ...........
	
	
	736
	

Calories available for air checker 2035X0 6381 =
	
	
	
	1299

Percentages for air and gas: 736-f- 921 =
	
	
	79 91
	

1299-f-1114 =
	
	
	
	116 61

Correction to make sum 200 .....
	
	
	1 41
	2 07

Corrected values
	
	
	81 32
	118 68

Reducing to 100% basis .....
	
	
	40 66
	59 34

Calories per cubic meter of gas burned-    921X0 4066=   .
	
	
	374
	

1114X0.5934= .......
	
	
	
	661

Calories required by preheat .....
	279
	492
	
	

Volumes of gas, air supply and products of combustion: Gas at 0 760 mm ............
	5 m332
	
	
	

Air at 0 760mm ............
	
	8m3 51
	
	

Products of combustion: 12.77X0.4066= ...........
	
	
	5m3 19
	

12.77X0.5934= ...........
	
	
	
	7 m358

Calories per second required: 5.32X279= .................
	(188 cu ft ' 1484
	(300 cu ft)
	(181 cuft)
	(270 cuft)

5.32X492= .................
	
	2618
	
	

5.32X374= ..............
	
	
	1990
	

5.32X661 = ...............
	
	
	
	3516

Calories per cycle: 15 minute = 900 seconds
	1,335,COO
	
	1,791 000
	

20 minute = 1200 seconds ......
	1,781,000
	2,356,000
	2,388,000
	3,164,000

25 minute = 1500 seconds ......
	2,226,000
	3,141,000
	2 985 000
	4,219,000


	
	3,627,000
	
	4,974,000